两岸关系和平发展的政治基础是 [ ]
A．坚持一个中国的原则
B．坚持一国两制的方针
C．坚持共同协商的原则
D．坚持求同存异的原则
答案：A
燃烧速度
—You have made great progress recently.
—______. [ ]
A. So has Ann
B. So Ann has
C. So she does
D. So does she
